About convert torch.LongTensor(l) to C++

Chen0729 · November 18, 2020, 2:18am

Hi, All

I am wondering how to convert label= torch.LongTensor(l) as torch::LongTensor does not exist.

Any suggestion is welcome.

Thanks

albanD · November 18, 2020, 3:05pm

Hi,

You can use the equivalent of torch.tensor(l, dtype=torch.long).
Not sure what is the exact c++ way to write that though

Chen0729 · November 18, 2020, 3:24pm

Thanks a lot.

Actually, I use y=l[0].to(tensor:kFloat32)
in dype in C++ in libtorch it seems that there is no “Long” but I am not sure if they are good approximation in this case.

albanD · November 18, 2020, 3:31pm

I think the name is torch::kInt64 of the torch namespace (or at::kLong but the torch version should be used I think).